. >> in the crowd watching the speech was yvette holt. this surveillance tape shows the day her 16-year-old son was murdered. a gunman walked onto this bus and started shooting. >> i think violence is going to change. it has to change. we can't continue at this pace. what he said is so important because now people understand it's not just up to the president. it's not just up to the mayor. it's a multifaceted approach that needs to take place in the city of chicago, and really, it starts at home with the parents. >> we also spoke with these two women who now find themselves on the other side. aunts of michael ward, one of two men charged with hadiya's murder. they describe him as nice and funny and they say while they don't know if he's responsible for the shooting, they say the violence has to stop, and like the president, their own community has to step up. >> stand outside and say let's get together, let's walk the streets, let's walk the block. not we're going to have a candle burning. that's not it. let's have a conversation with the